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Controlled coupling of a single emitter to a single mode of a microsphere: Where do we stand?

  • S. Götzinger
  • , L. D S Menezes
  • , A. Mazzei
  • , O. Benson
  • , D. V. Talapin
  • , N. Gaponik
  • , H. Weller
  • , A. L. Rogach
  • , V. Sandoghdar

Research output: Journal Publications and ReviewsRGC 22 - Publication in policy or professional journal

Abstract

We measured the coupling of the fluorescence from semiconductor nano-crystals and sub-micron sized dye-doped beads to high-Q whispering gallery modes (WGM) of a microsphere resonator. With Q-factors as high as 10 9 the fluorescence could be extracted in a controlled way via a prism coupler. We observed nearly 100 % modulation in the spectrum which reflects the coupling to the WGMs. With the help of a beam scanning confocal microscope we were able to address a single 500 nm sized dye-doped bead on the sphere's surface and to collect and analyze its fluorescence in a well defined manner via the prism coupler.
Original languageEnglish
Pages (from-to)207-214
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume4969
DOIs
Publication statusPublished - 2003
Externally publishedYes
EventLaser Resonators and Beam Control VI - San Jose, CA, United States
Duration: 28 Jan 200330 Jan 2003

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